<template>
  <div class="app-container">
    <el-form
      :model="queryParams"
      ref="queryForm"
      size="small"
      :inline="true"
      v-show="showSearch"
      label-width="68px"
    >
      <el-form-item label="班级名称" prop="clazzName">
        <el-input
          v-model="queryParams.clazzName"
          placeholder="请输入班级名称"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button
          type="primary"
          icon="el-icon-search"
          size="mini"
          @click="handleQuery"
          >搜索</el-button
        >
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery"
          >重置</el-button
        >
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['system:clazz:add']"
          >新增</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['system:clazz:edit']"
          >修改</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['system:clazz:remove']"
          >删除</el-button
        >
      </el-col>
      <right-toolbar
        :showSearch.sync="showSearch"
        @queryTable="getList"
      ></right-toolbar>
    </el-row>

    <el-table
      v-loading="loading"
      :data="clazzList"
      @selection-change="handleSelectionChange"
    >
      <el-table-column label="序号" align="center" type="index" />
      <el-table-column label="专业" align="center" prop="majorName" />
      <el-table-column label="班级名称" align="center" prop="clazzName" />
      <el-table-column label="部门" align="center" prop="deptName" />
      <el-table-column
        label="操作"
        align="center"
        class-name="small-padding fixed-width"
      >
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['system:clazz:edit']"
            >修改</el-button
          >
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['system:clazz:remove']"
            >删除</el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total > 0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改班级管理对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <!-- 部门 -->
        <el-form-item label="部门" prop="deptId">
          <el-select
            v-model="form.deptId"
            placeholder="请选择部门"
            clearable
            size="small"
            @change="handleDeptChange"
          >
            <el-option
              :key="item.deptId"
              :value="item.deptId"
              :label="item.deptName"
              v-for="item in deptList"
            />
          </el-select>
        </el-form-item>

        <el-form-item label="专业" prop="majorId">
          <el-select
            v-model="form.majorId"
            placeholder="请选择专业"
            clearable
            size="small"
          >
            <el-option
              :key="item.majorId"
              :value="item.majorId"
              v-for="item in majorOfDeptList"
              :label="item.majorName"
            ></el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="班级名称" prop="clazzName">
          <el-input v-model="form.clazzName" placeholder="请输入班级名称" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listDept } from "@/api/system/dept";
import { listMajor } from "@/api/system/major";
import {
  listClazz,
  getClazz,
  delClazz,
  addClazz,
  updateClazz,
} from "@/api/system/clazz";

export default {
  name: "Clazz",
  data() {
    return {
      majorOfDeptList: [],
      majorList: [],
      deptList: [],
      selectedDeptId: null, // 存储当前选中的部门ID
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 班级管理表格数据
      clazzList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        majorId: null,
        clazzName: null,
        deptId: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {},
    };
  },
  created() {
    this.getList();
    this.getDeptList();
    listMajor().then((response) => {
      this.majorList = response.rows;
      this.majorOfDeptList = response.rows;
    });
  },
  methods: {
    handleDeptChange(deptId) {
      this.selectedDeptId = deptId;
      this.filterMajorsByDept(deptId);
    },
    filterMajorsByDept(deptId) {
      if (deptId) {
        this.majorOfDeptList = this.majorList.filter(
          (major) => major.deptId === deptId
        );
      } else {
        // 如果没有选择部门，可以重新加载所有专业或设置为空
        listMajor().then((response) => {
          this.majorList = response.rows;
        });
      }
    },
    getDeptList() {
      let dept = { parentId: 100 };
      listDept(dept).then((response) => {
        this.deptList = response.data;
      });
    },
    /** 查询班级管理列表 */
    getList() {
      this.loading = true;
      listClazz(this.queryParams).then((response) => {
        this.clazzList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        clazzId: null,
        majorId: null,
        clazzName: null,
        deptId: null,
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map((item) => item.clazzId);
      this.single = selection.length !== 1;
      this.multiple = !selection.length;
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加班级管理";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const clazzId = row.clazzId || this.ids;
      getClazz(clazzId).then((response) => {
        this.form = response.data;
        this.open = true;
        this.title = "修改班级管理";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate((valid) => {
        if (valid) {
          if (this.form.clazzId != null) {
            updateClazz(this.form).then((response) => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addClazz(this.form).then((response) => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });

      this.majorOfDeptList = this.majorList;
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const clazzIds = row.clazzId || this.ids;
      this.$modal
        .confirm('确认删除"' + row.clazzName + '"班？')
        .then(function () {
          return delClazz(clazzIds);
        })
        .then(() => {
          this.getList();
          this.$modal.msgSuccess("删除成功");
        })
        .catch(() => {});
    },
  },
};
</script>
